Police were called to Spinnaker Bay in South Seattle just after 4 a.m. when a nearby resident said he heard a man and woman screaming for help from the water.
Police and Seattle firefighters arrived moments later and were able to pull a man from the water. He had cuts on his face, neck and chest and had two swollen eyes, according to police.
The man, who appeared intoxicated, told police he didn't remember how he ended up in the water. He said he was being chased by woman he didn't know, and that she was now in the bay.
He said he wasn't assaulted and didn't remember how he got his injuries, according to police.
Rescue divers from the Seattle Fire Department searched the water but were unable to find the woman. After interviewing the man, police say he admitted to lying about the woman being in the water.
The U.S. Coast Guard was advised about the incident, but authorities do not believe anyone is unaccounted for.